排序数组而不更改密钥

Question

如何排序下面的数组，因此顶部和键的较大值不会更改。

Array 
(
    [8] => 2 
    [9] => 2 
    [10] => 1 
    [12] => 1 
    [16] => 1 
    [17] => 1 
    [18] => 1 
    [19] => 1 
    [20] => 2 
    [23] => 1 
    [24] => 2 
    [25] => 2 
    [27] => 1 
    [50] => 2 
    [4] => 1 
    [14] => 1 
) 

感谢

Answer 1

您应该能够使用asort/arsort。从PHP.net（http://www.php.net/manual/en/function.arsort.php）的arsort用法示例：

<?php 
    $fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple"); 
    arsort($fruits); 
    foreach ($fruits as $key => $val) { 
     echo "$key = $val\n"; 
    } 
?> 

Answer 2

直接从PHP Manual

This function sorts an array such that array indices maintain their correlation with the array elements they are associated with. This is used mainly when sorting associative arrays where the actual element order is significant.

<?php 
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple"); 
asort($fruits); 
foreach ($fruits as $key => $val) { 
    echo "$key = $val\n"; 
} 
?>